Middle Ridge Drive over Big Rocky Run
Fair Condition94 years old1,095 vehicles/day
Location
| State | Virginia |
| County | Fairfax |
| Location | 00.15fr4820/00.04to4980 |
| Carries | Middle Ridge Drive |
| Crosses | Big Rocky Run |
| Coordinates | 38.86852, -77.39325 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 53.1 ft (16.2 m) |
| Max Span | 50.9 ft (15.5 m) |
| Deck Width | 54.8 ft (16.7 m) |
| Deck Area | 270.5 sq m |
| Main Spans | 1 |
| Year Built | 1932 |
Traffic
| Avg Daily Traffic | 1,095 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000007031 |